Dudley risks missing his child's birthday to fight a major fire.
It's an all-out race to stop the River Fire before it hits basecamp.
The Creek Fire, set to become the most destructive fire in California history, ignites in the Sierras and forces the rescue of campers trapped by flames. Chief Walker and crews battle the Valley fire that threatens hundreds of homes.
Fire season intensifies with the El Dorado Fire that takes the life of a firefighter. A major structure inferno erupts and quickly becomes a five-alarm blaze. Rookie firefighters are trained to become hand crews as resources are drained on other fires.
Cal Fire races to put down neighborhood fires in Southern California before they're fanned by the famed Santa Ana winds. And when the winds strike with a vengeance, crews battle a tragic memory of the past as two big blazes escalate quickly.